Q: What are the prime factors of the number 206,144?

 A: 2, 3221

Why are those the prime factors of the number 206,144?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 206,144

206,144
Factor Arrows
2103,072
Factor Arrows
251,536
Factor Arrows
225,768
Factor Arrows
212,884
Factor Arrows
26,442
Factor Arrows
23,221

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3221

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3,221 = 206,144

This can also be written as 26 x 3,2211 = 206,144

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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